ci: Update environment variables for translation workflow

[shhdgit]

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What is changed, added or deleted? (Required)

This pull request updates the environment variables used in the translation workflow to switch from LangLink to OpenAI for translation services. The most important changes are:

Translation service migration:

• Replaced the LangLink environment variables (LANGLINK_ACCESS_KEY, LANGLINK_ACCESS_SECRET, LANGLINK_USER) with OpenAI-specific variables (OPENAI_RESPONSES_API_URL, OPENAI_API_KEY, and OPENAI_MODEL=gpt-5.4) in the .github/workflows/translation-zh.yaml file to enable the use of OpenAI's translation capabilities.

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[gemini-code-assist]

Note

Gemini is unable to generate a review for this pull request due to the file types involved not being currently supported.

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2026-04-14 06:12:01.080973086 +0000 UTC m=+1455126.286333143: ☑️ agreed by lilin90.
• 2026-04-14 07:04:55.312339322 +0000 UTC m=+1458300.517699399: ☑️ agreed by qiancai.

[qiancai]

/approve

[ti-chi-bot]

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